Plant Viruses Online   

Descriptions and Lists from the VIDE Database

Tobacco yellow vein (?) umbravirus

Index

• Nomenclature
• Host range, transmission and symptoms
• Physical and biochemical properties
• Taxonomy and relationships
• Comments and References

Data collated by A.A. Brunt and A.N. Adams, 1987.

Nomenclature

Acronym

TYVV

Strains

mild and virulent strains.

ICTV decimal code

78.0.1.T.010

Host range and symptoms

Natural host range and symptoms

• Nicotiana rustica, Nicotiana tabacum - chlorotic vein-banding and leaf malformation.

Transmission

Transmitted by a vector; an insect; Myzus persicae; Aphididae. Transmitted in a persistent manner. Virus retained when the vector moults; requires, for vector transmission, a helper virus (tobacco yellow vein assistor (?) luteovirus); transmitted by mechanical inoculation.

Ecology and control

Studies reported by Adams and Hull (1972).

Geographical distribution

Spreads in Malawi.

Experimental host range

Few (<3) families susceptible.

Diagnostically susceptible host species and symptoms

• Nicotiana tabacum, N. clevelandii, N. glutinosa, N. rustica - systemic chlorotic vein-banding; severe isolates also cause malformation.
• Lycopersicon esculentum, Nicandra physalodes, Petunia × hybrida - light and dark green systemic leaf mottling.
• Arachis hypogaea - systemic pale green rings and pale green areas along midribs.
• Glycine max - mild systemic leaf mottling.

Diagnostically insusceptible host species

Brassica campestris ssp. pekinensis, Chenopodium amaranticolor, C. quinoa, Cucumis sativus, Datura stramonium.

Maintenance and propagation hosts

Nicotiana tabacum.

Assay hosts (Local lesions or Whole plants)

Nicotiana tabacum (W), N. rustica (W), N. clevelandii (W), N. glutinosa (W).

Susceptible host species

• Arachis hypogaea
• Glycine max
• Lycopersicon esculentum
• Nicandra physalodes
• Nicotiana clevelandii
• Nicotiana glutinosa
• Nicotiana rustica
• Nicotiana tabacum
• Petunia × hybrida

Insusceptible host species

• Brassica campestris ssp. pekinensis
• Chenopodium amaranticolor
• Chenopodium quinoa
• Cucumis sativus
• Datura stramonium
• Phaseolus vulgaris
• Raphanus sativus
• Vicia faba
• Vigna unguiculata

Families containing susceptible hosts

• Leguminosae-Papilionoideae (2/5)
• Solanaceae (7/8)

Families containing insusceptible hosts

• Chenopodiaceae (2/2)
• Cruciferae (2/2)
• Cucurbitaceae (1/1)
• Leguminosae-Papilionoideae (3/5)
• Solanaceae (1/8)

Sources of host-range data

Adams and Hull (1972).

Physical and biochemical properties

No data available.

Taxonomy and relationships

Possible Umbravirus

Additional comments on relationships

Does not cross-protect against tobacco mottle and groundnut rosette viruses.

Comments and References

References

• Adams, A.N. and Hull, R. (1972). Ann. appl. Biol. 71: 135.

Cite this publication as: Brunt, A.A., Crabtree, K., Dallwitz, M.J., Gibbs, A.J., Watson, L. and Zurcher, E.J. (eds.) (1996 onwards). `Plant Viruses Online: Descriptions and Lists from the VIDE Database. Version: 20^th August 1996.' URL http://biology.anu.edu.au/Groups/MES/vide/

Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993) should also be cited.